6715728228181 has 16 divisors (see below), whose sum is σ = 7764025068544. Its totient is φ = 5690038109184.

The previous prime is 6715728228161. The next prime is 6715728228193. The reversal of 6715728228181 is 1818228275176.

It is a cyclic number.

It is not a de Polignac number, because 6715728228181 - 2⁹ = 6715728227669 is a prime.

It is a super-2 number, since 2×6715728228181² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6715728228161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15618885 + ... + 16043098.

It is an arithmetic number, because the mean of its divisors is an integer number (485251566784).

Almost surely, 2^{6715728228181} is an apocalyptic number.

It is an amenable number.

6715728228181 is a deficient number, since it is larger than the sum of its proper divisors (1048296840363).

6715728228181 is a wasteful number, since it uses less digits than its factorization.

6715728228181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31662340.

The product of its digits is 6021120, while the sum is 58.

The spelling of 6715728228181 in words is "six trillion, seven hundred fifteen billion, seven hundred twenty-eight million, two hundred twenty-eight thousand, one hundred eighty-one".